.EXTERN MY_LABEL2; .section .text; // //8 BIT OPERATIONS // //BITCLR ( Dreg , uimm5 ) ; /* (a) */ BITCLR ( R7 , 0 ) ; BITCLR ( R7 , 31 ) ; BITCLR ( R7 , 15 ) ; BITCLR ( R1 , 0 ) ; BITCLR ( R2 , 1 ) ; BITCLR ( R3 , 19 ) ; //BITSET ( Dreg , uimm5 ) ; /* (a) */ BITSET ( R7 , 0 ) ; BITSET ( R7 , 31 ) ; BITSET ( R7 , 15 ) ; BITSET ( R1 , 0 ) ; BITSET ( R2 , 1 ) ; BITSET ( R3 , 19 ) ; //BITTGL ( Dreg , uimm5 ) ; /* (a) */ BITTGL ( R7 , 0 ) ; BITTGL ( R7 , 31 ) ; BITTGL ( R7 , 15 ) ; BITTGL ( R1 , 0 ) ; BITTGL ( R2 , 1 ) ; BITTGL ( R3 , 19 ) ; //CC = BITTST ( Dreg , uimm5 ) ; /* set CC if bit = 1 (a)*/ CC = BITTST ( R7 , 0 ) ; CC = BITTST ( R7 , 31 ) ; CC = BITTST ( R7 , 15 ) ; CC = BITTST ( R1 , 0 ) ; CC = BITTST ( R2 , 1 ) ; CC = BITTST ( R3 , 19 ) ; //CC = ! BITTST ( Dreg , uimm5 ) ; /* set CC if bit = 0 (a)*/ CC = !BITTST ( R7 , 0 ) ; CC = !BITTST ( R7 , 31 ) ; CC = !BITTST ( R7 , 15 ) ; CC = !BITTST ( R1 , 0 ) ; CC = !BITTST ( R2 , 1 ) ; CC = !BITTST ( R3 , 19 ) ; //Dreg = DEPOSIT ( Dreg, Dreg ) ; /* no extension (b) */ R7 = DEPOSIT(R0, R1); R7 = DEPOSIT(R7, R1); R7 = DEPOSIT(R7, R7); R1 = DEPOSIT(R0, R1); R2 = DEPOSIT(R7, R1); R3 = DEPOSIT(R7, R7); //Dreg = DEPOSIT ( Dreg, Dreg ) (X) ; /* sign-extended (b) */ R7 = DEPOSIT(R0, R1)(X); R7 = DEPOSIT(R7, R1)(X); R7 = DEPOSIT(R7, R7)(X); R1 = DEPOSIT(R0, R1)(X); R2 = DEPOSIT(R7, R1)(X); R3 = DEPOSIT(R7, R7)(X); //Dreg = EXTRACT ( Dreg, Dreg_lo ) (Z) ; /* zero-extended (b)*/ R7 = EXTRACT(R0, R1.L)(Z); R7 = EXTRACT(R7, R1.L)(Z); R7 = EXTRACT(R7, R7.L)(Z); R1 = EXTRACT(R0, R1.L)(Z); R2 = EXTRACT(R7, R1.L)(Z); R3 = EXTRACT(R7, R7.L)(Z); //Dreg = EXTRACT ( Dreg, Dreg_lo ) (X) ; /* sign-extended (b)*/ R7 = EXTRACT(R0, R1.L)(X); R7 = EXTRACT(R7, R1.L)(X); R7 = EXTRACT(R7, R7.L)(X); R1 = EXTRACT(R0, R1.L)(X); R2 = EXTRACT(R7, R1.L)(X); R3 = EXTRACT(R7, R7.L)(X); //BITMUX ( Dreg , Dreg , A0 ) (ASR) ; /* shift right, LSB is shifted out (b) */ BITMUX(R0, R1, A0)(ASR); BITMUX(R0, R2, A0)(ASR); BITMUX(R1, R3, A0)(ASR); //BITMUX(R0, R0, A0)(ASR); //BITMUX ( Dreg , Dreg , A0 ) (ASL) ; /* shift left, MSB is shifted out (b) */ //BITMUX(R0, R0, A0)(ASL); BITMUX(R0, R1, A0)(ASL); BITMUX(R1, R2, A0)(ASL); //Dreg_lo = ONES Dreg ; /* (b) */ R0.L = ONES R0; R0.L = ONES R1; R1.L = ONES R6; R2.L = ONES R7;